Queue Sharing and Redirection
Quality of Service Guide 393
2. Apply the queue-group template to the network ingress forwarding plane where there
exists a network IP interface that the PW packets can be received on. This creates one
instance of the template on the ingress of the FP. One or more instances of the same
template can be created.
3. Configure FC-to-policer mappings together with the policer redirect to a queue-
group in the ingress context of a network QoS policy. No queue-group name is
specified in this step, which means the same network QoS policy can redirect
different PWs to different queue-group templates.
4. Apply this network QoS policy to the ingress context of a spoke-sdp inside a service,
or to the ingress context of a PW template and specify the redirect queue-group name.
One or more spoke-sdps can have their FCs redirected to use policers in the same policer
queue-group instance.
The egress PW shaping provisioning model allows the mapping of one or more PWs to the
same instance of queues, or policers and queues, that are defined in the queue-group template.
Operationally, the provisioning model consists of the following steps:
1. Create an egress queue-group template and configure queues only, or policers and
queues for each FC which needs to be redirected.
2. Apply the queue-group template to the network egress context of all ports where
there exists a network IP interface which the PW packets can be forwarded on. This
creates one instance of the template on the egress of the port. One or more instances
of the same template can be created.
3. Configure FC-to-policer or FC-to-queue mappings together with the redirect to a
queue-group in the egress context of a network QoS policy. No queue-group name is
specified in this step, which means the same network QoS policy can redirect
different PWs to different queue-group templates.
4. Apply this network QoS policy to the egress context of a spoke-sdp inside a service,
or to the egress context of a PW template and specify the redirect queue-group name.
One or more spoke-sdps can have their FCs redirected to use queues only, or queues and
policers in the same queue-group instance.
QoS on Ingress Bindings
Traffic is tunneled between VPRN service instances on different PEs over service tunnels
bound to MPLS LSPs or GRE tunnels. The binding of the service tunnels to the underlying
transport is achieved either automatically (using the auto-bind-tunnel command) or
statically (using the spoke-sdp command; not that under the VPRN IP interface). QoS control
can be applied to the service tunnels for traffic ingressing into a VPRN service, see Figure 19.
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